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authorBjorn Helgaas <bhelgaas@google.com>2016-12-12 18:25:09 +0100
committerBjorn Helgaas <bhelgaas@google.com>2016-12-12 18:25:09 +0100
commit46275d43c8dbf13d8b0c6e7a455608eeb220a677 (patch)
treeb4d4725f448181dc0f587310ebfd782909227027 /drivers/pci
parentMerge branch 'pci/host-iproc' into next (diff)
parentPCI: layerscape: Add LS1046a support (diff)
downloadlinux-46275d43c8dbf13d8b0c6e7a455608eeb220a677.tar.xz
linux-46275d43c8dbf13d8b0c6e7a455608eeb220a677.zip
Merge branch 'pci/host-layerscape' into next
* pci/host-layerscape: PCI: layerscape: Add LS1046a support PCI: layerscape: Remove redundant error message from ls_pcie_probe()
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/host/pci-layerscape.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c
index 2cb7315e26d0..ca48ceb6ebaf 100644
--- a/drivers/pci/host/pci-layerscape.c
+++ b/drivers/pci/host/pci-layerscape.c
@@ -35,12 +35,10 @@
#define PCIE_STRFMR1 0x71c /* Symbol Timer & Filter Mask Register1 */
#define PCIE_DBI_RO_WR_EN 0x8bc /* DBI Read-Only Write Enable Register */
-/* PEX LUT registers */
-#define PCIE_LUT_DBG 0x7FC /* PEX LUT Debug Register */
-
struct ls_pcie_drvdata {
u32 lut_offset;
u32 ltssm_shift;
+ u32 lut_dbg;
struct pcie_host_ops *ops;
};
@@ -134,7 +132,7 @@ static int ls_pcie_link_up(struct pcie_port *pp)
struct ls_pcie *pcie = to_ls_pcie(pp);
u32 state;
- state = (ioread32(pcie->lut + PCIE_LUT_DBG) >>
+ state = (ioread32(pcie->lut + pcie->drvdata->lut_dbg) >>
pcie->drvdata->ltssm_shift) &
LTSSM_STATE_MASK;
@@ -196,18 +194,28 @@ static struct ls_pcie_drvdata ls1021_drvdata = {
static struct ls_pcie_drvdata ls1043_drvdata = {
.lut_offset = 0x10000,
.ltssm_shift = 24,
+ .lut_dbg = 0x7fc,
+ .ops = &ls_pcie_host_ops,
+};
+
+static struct ls_pcie_drvdata ls1046_drvdata = {
+ .lut_offset = 0x80000,
+ .ltssm_shift = 24,
+ .lut_dbg = 0x407fc,
.ops = &ls_pcie_host_ops,
};
static struct ls_pcie_drvdata ls2080_drvdata = {
.lut_offset = 0x80000,
.ltssm_shift = 0,
+ .lut_dbg = 0x7fc,
.ops = &ls_pcie_host_ops,
};
static const struct of_device_id ls_pcie_of_match[] = {
{ .compatible = "fsl,ls1021a-pcie", .data = &ls1021_drvdata },
{ .compatible = "fsl,ls1043a-pcie", .data = &ls1043_drvdata },
+ { .compatible = "fsl,ls1046a-pcie", .data = &ls1046_drvdata },
{ .compatible = "fsl,ls2080a-pcie", .data = &ls2080_drvdata },
{ .compatible = "fsl,ls2085a-pcie", .data = &ls2080_drvdata },
{ },
@@ -251,10 +259,8 @@ static int __init ls_pcie_probe(struct platform_device *pdev)
dbi_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
pcie->pp.dbi_base = devm_ioremap_resource(dev, dbi_base);
- if (IS_ERR(pcie->pp.dbi_base)) {
- dev_err(dev, "missing *regs* space\n");
+ if (IS_ERR(pcie->pp.dbi_base))
return PTR_ERR(pcie->pp.dbi_base);
- }
pcie->drvdata = match->data;
pcie->lut = pcie->pp.dbi_base + pcie->drvdata->lut_offset;